20 CFR 404.989 : Employees' Benefits (§ 1.1 To Parts 1011-1099) — (Part 400 To Part 499) — Social Security Administration (Part 400 To Part 499) — Federal Old-Age, Survivors And Disability Insurance (1950- ) (§ 404.1 To § 404.2127) — Determinations, Administrative Review Process, And Reopening Of Determinations And Decisions (§ 404.900 To § 404.999D) — Reopening And Revising Determinations And Decisions (§ 404.987 To § 404.996) — Good cause for reopening.

(a) We will find that there is good cause to reopen a determination or decision if -

(1) New and material evidence is furnished;

(2) A clerical error in the computation or recomputation of benefits was made; or

(3) The evidence that was considered in making the determination or decision clearly shows on its face that an error was made.

(b) We will not find good cause to reopen your case if the only reason for reopening is a change of legal interpretation or adminstrative ruling upon which the determination or decision was made.